In vitro and in vivo evaluation of cypermethrin, amitraz, and piperonyl butoxide mixtures for the control of resistant Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) in the Mexican tropics

A study was conducted to evaluate the efficacy of cypermethrin, amitraz, and piperonyl butoxide (PBO) mixtures, through in vitro laboratory bioassays and in vivo on-animal efficacy trials, for the control of resistant Rhipicephalus (Boophilus) microplus on cattle in the Mexican tropics. Also, to exa...

Full description

Saved in:
Bibliographic Details
Published in:Veterinary parasitology 2013-10, Vol.197 (1-2), p.288-296
Main Authors: Rodriguez-Vivas, R.I., Li, A.Y., Ojeda-Chi, M.M., Trinidad-Martinez, I., Rosado-Aguilar, J.A., Miller, R.J., Pérez de León, A.A.
Format: Article
Language:English
Subjects:
Acari
Acaricide
additive effect
amitraz
Animals
bioassays
Boophilus
Boophilus microplus
cattle
cypermethrin
Formamidine
genes
Insecticide Resistance - genetics
Insecticides - administration & dosage
Insecticides - pharmacology
Ixodidae
Larva - drug effects
larvae
Mexico
Mixture
mortality
Mutation
Pesticide Synergists
piperonyl butoxide
Piperonyl Butoxide - administration & dosage
Piperonyl Butoxide - pharmacology
polymerase chain reaction
probability
Pyrethrins - administration & dosage
Pyrethrins - pharmacology
Pyrethroid
Resistance
resistance mechanisms
Rhipicephalus
Rhipicephalus - drug effects
Rhipicephalus - genetics
Rhipicephalus - metabolism
Rhipicephlaus (Boophilus) microplus
sodium channels
Sodium Channels - genetics
Sodium Channels - metabolism
synergism
Synergist
Tick control
ticks
Toluidines - administration & dosage
Toluidines - pharmacology
toxicity
Tropical Climate
tropics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A study was conducted to evaluate the efficacy of cypermethrin, amitraz, and piperonyl butoxide (PBO) mixtures, through in vitro laboratory bioassays and in vivo on-animal efficacy trials, for the control of resistant Rhipicephalus (Boophilus) microplus on cattle in the Mexican tropics. Also, to examine mechanisms of resistance to cypermethrin in this tick population, the frequency of a mutated sodium channel gene (F1550I) was determined using a PCR assay. Results of laboratory bioassays using modified larval packet tests revealed that cypermethrin toxicity was synergized by PBO (from 46.6–57.0% to 83.7–85.0% larval mortality; P
ISSN:0304-4017
1873-2550
DOI:10.1016/j.vetpar.2013.07.018